Ranking the 8 Most Challenging Devil Fruits to Master in One Piece

Overview of Mastering Devil Fruits in One Piece

  • Mastery of certain Devil Fruits necessitates extensive time and expertise.
  • Characters such as Kaku and Ivankov exemplify innovative applications of their Devil Fruits.
  • Monkey D. Luffy’s evolution as a user of the Gomu Gomu no Mi showcases exceptional adaptability and creativity.

Eiichiro Oda’s One Piece is celebrated for its imaginative power system centered around Devil Fruits, which endow individuals with superhuman capabilities. Some characters fortuitously acquire immense powers by merely consuming these fantastical fruits, gaining abilities like fire generation or transformation into majestic creatures. However, not every character enjoys such immediate advantages, as many Devil Fruits harbor peculiar abilities that demand significant dedication and mastery.

In this universe, numerous Devil Fruit users have struggled with their unique powers, yet several have successfully honed their skills. Below are eight of the most compelling cases of characters who have fully mastered their unusual abilities.

8 Ushi Ushi No Mi, Model: Giraffe

Eaten By Kaku

Kaku showcases his awakened Devil Fruit powers.
  • Type: Zoan
  • Debut: Chapter 401 (Manga), Episode 286 (Anime)

Users of Zoan Type Devil Fruits typically transform into formidable predators. In contrast, Kaku from CP9 gains the abilities of the Giraffe through the Ushi Ushi no Mi, Model: Giraffe during the Enies Lobby Arc. Despite the seemingly benign nature of the giraffe, Kaku quickly demonstrated his combat prowess by integrating his knowledge of giraffe biology with advanced Rokushiki techniques. Although he was defeated by Roronoa Zoro, Kaku returned two years later with awakened powers, showcasing his growth and determination, though Zoro handily overcame him again.

7 Yomi Yomi No Mi

Eaten By Brook

Brook using his freezing sword.
  • Type: Paramecia
  • Debut: Chapter 442 (Manga), Episode 337 (Anime)

The Yomi Yomi no Mi is known as the Resurrection Fruit, activated only when the user has died. Brook discovered this after his entire crew was slain, but he returned to life with the ability to manipulate his soul. Joining the Straw Hat Pirates allowed him to refine his skills, leading to extraordinary techniques, including detaching his soul to gather intelligence and summoning a giant ghost to combat Big Mom’s Homies. Brook’s creativity made the Yomi Yomi no Mi a powerful asset, one that could have easily been squandered in less capable hands.

6 Horu Horu No Mi

Eaten By Emporio Ivankov

Ivankov using his powers to avoid an attack.
  • Type: Paramecia
  • Debut: Chapter 537 (Manga), Episode 439 (Anime)

The Horu Horu no Mi allows its user to create and inject various hormones into themselves or others. Eaten by Emporio Ivankov, this fruit presented numerous opportunities for its innovative user. Among other abilities, Ivankov could change anyone’s gender, highly relevant given his role as the Okama King of Kamabakka Kingdom, and bolster his combat efficiency by manipulating body dimensions and applying adrenaline. His successful evolution as a user is a testament to his thorough understanding of hormonal science.

5 Hito Hito No Mi

Eaten By Tony Tony Chopper

Tony Tony Chopper in monster form.
  • Type: Zoan
  • Debut: Chapter 138 (Manga), Episode 83 (Anime)

Often regarded as one of the least impressive Devil Fruits, the Hito Hito no Mi allows a reindeer, Tony Tony Chopper, to gain human intelligence. Through ingenuity and relentless training, Chopper developed the Rumble Balls to enhance his powers, enabling multiple transformations and incredible combat capabilities over time. This transformation reflects not only his intellect but also his resourcefulness in turning a seemingly mundane fruit into a formidable tool.

4 Nikyu Nikyu No Mi

Eaten By Bartholomew Kuma

Bartholomew Kuma using Ursus Shock.
  • Type: Paramecia
  • Debut: Chapter 473 (Manga), Episode 368 (Anime)

The Nikyu Nikyu no Mi is acclaimed for its unusual abilities, obtained by Bartholomew Kuma. This fruit empowers him with paddings on his palms that allow him to ‘push’ away attacks and even eliminate concepts such as pain and fatigue. His ability to transport himself and others anywhere in the world illustrates the extreme versatility he mastered through rigorous training.

3 Ope Ope No Mi

Eaten By Trafalgar D. Water Law

Law receiving the Ope Ope no Mi.
  • Type: Paramecia
  • Debut: Chapter 504 (Manga), Episode 398 (Anime)

The Ope Ope no Mi stands apart due to its complexity, requiring both creativity and extensive medical knowledge. Trafalgar Law expertly harnesses this fruit to create “Rooms” where he can perform incredible medical feats, such as rearranging body parts and generating electrical currents. Law’s awakening of this Devil Fruit demonstrates his exceptional skill, enabling even greater mastery over its capabilities.

2 Ito Ito No Mi

Eaten By Donquixote Doflamingo

Donquixote Doflamingo slashing with strings.
  • Type: Paramecia
  • Debut: Chapter 234 (Manga), Episode 151 (Anime)

The seemingly humble Ito Ito no Mi becomes a powerful weapon in the hands of Donquixote Doflamingo, a savvy strategist who can control strings for various invasive applications. He mastered creating clones and even used his powers to manipulate his environment, trapping opponents with a massive string birdcage. His successful awakening of this Devil Fruit underlines the blend of power and finesse he wielded.

1 Gomu Gomu No Mi (Hito Hito No Mi, Model: Nika)

Eaten By Monkey D. Luffy

Luffy trying to control his rubber abilities.
  • Type: Paramecia (Mythical Zoan)
  • Debut: Chapter 1 (Manga), Episode 1 (Anime)

Monkey D. Luffy’s journey through mastering the Gomu Gomu no Mi is a captivating narrative of growth. Initially, Luffy struggled to harness the rubber powers acquired from the fruit. Through intense training and countless battles, he transformed into a formidable adversary, creating various powerful techniques such as Gomu Gomu no Pistol and Gomu Gomu no Bazooka. His ability to unlock advanced forms like Gear 2, Gear 3, and ultimately Gear 5 exemplifies his mastery, where his imagination becomes the only constraint of his powers.

Overall, one of the most engaging aspects of One Piece is the character development through these unique abilities, revealing the dedication and creativity of the characters as they navigate their journeys in the world.

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